Question
Download Solution PDFहॉट शॉर्टनेस ही ________ची एक घटना आहे.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFस्पष्टीकरण:
- हॉट शॉर्टनेस: काही मिश्रधातूंना वितळण्याच्या बिंदूजवळ तापमानात विकृत केल्यावर धान्याच्या सीमारेषेवर ठिसूळ पद्धतीने फ्रॅक्चर होण्याची प्रवृत्ती असते.
- गरम शॉर्टनेस हॉट-वर्किंग ऑपरेशन्समध्ये अडचण निर्माण करते.
- एनीलिंग प्रक्रियेदरम्यान हे सामान्यतः नॉनफेरस धातूंमध्ये आढळते.
- कारण: हे धान्याच्या सीमारेषेच्या भ्रूणपणाच्या घटनेमुळे होते.
- ग्रेन बाउंड्री एम्ब्रिटलमेंट: जेव्हा सामान्य लवचिक आणि मजबूत धातू विशिष्ट कमी वितळण्याच्या बिंदूच्या धातूंच्या जवळ आण्विक संपर्कात आणली जाते तेव्हा ते अगदी कमी ताणतणावांमध्येही सहजपणे क्रॅक होतील.
- उदाहरण: पारा-झिंक मिश्रणाने ओले केलेले ॲल्युमिनियम
Last updated on Jun 11, 2025
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